[mobile] Frappe mobile framework setup error and request for link to docs

I am trying to setup and run framework on android studio. The git clone I took from

When I do $cordova build android, it throws error

Error: /home/ashish/android-studio/erpnextmobile/mobile/platforms/android/gradlew: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.

  • Where:
    Build file ‘/home/ashish/android-studio/erpnextmobile/mobile/platforms/android/build.gradle’ line: 291
  • What went wrong:
    A problem occurred evaluating root project ‘android’.

Keystore file does not exist: /home/ashish/android-studio/erpnextmobile/mobile/platforms/android/…/…/…\android.keystore

I have generated keystore and mentioned the same in build.json.
Question (a) Any idea what could be wrong (b) Is there any documentation for using frappe mobile framework setup and use? Are there any app available on git using this framework.

I could solve this. The keystore error occurs when trying to build using android studio. However if you run cordova commands from terminal the apk gets generated without issue